This seems so simple, but I can't figure it out. I have 2 columns in a table. column a and column b. I want a pie chart to show column a and column b in the same pie chart as a percentage of column a and column b added together.
Example: Column a is 15
Column b is 5
Pie chart has 25% filled labeled column B and 75% filled labeled column A
How do I do this?